Mild Steel / Black Pipes

Mild steel ERW (Electric Resistance Welded) pipes are cost-effective and versatile for various applications. They are made by welding flat steel sheets, offering strength and reliability in construction and plumbing.

technical specification

National and international specification IS, BS, API, ASTM

IS 1239 black pipes are uncoated steel pipes used for a wide range of applications. They are known for their durability and versatility in plumbing, construction, and industrial settings.

thickness

ERW black pipes come in various thicknesses to accommodate different structural and pressure requirements. The thickness can range from light to heavy, depending on the intended use.

Application

Generally used for drinking water supply i.e. Plumbing, Firefighting, HVAC but can also be used in various other Industrial and Engineering applications.

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Galvanized and Black Pipes for Water, Gas and Air

Confirming to IS-1239 2004/BS-1387/IS-1161 (Structural Tubes)

N.B.	Series	Mean Outside Diameter (MM)	Wall Thickness		Nominal Weight Galvanized & Black Tubes				Sockets
					Plain End		Screwed & Socketed
			MM	SWG	kg/m	Mtrs/Tone	kg/m	Mtrs/Tone	OD in MM	Length MM
			MM	SWG	kg/m	Mtrs/Tone	kg/m	Mtrs/Tone	OD in MM	Length MM
15	Light	21.2	2	14	0.95	1056	0.95	1046
	Medium	21.4	2.6	12	1.21	826	1.22	820	27	37
	Heavy	21.4	3.2	10	1.44	694	1.45	690
20	Light	26.65	2.3	13	1.38	725	1.39	719
	Medium	26.9	2.6	12	1.56	641	1.57	637	32.5	39
	Hea	26.9	3.2	10	1.87	535	1.88	532
25	Light	33.5	2.6	12	1.98	505	2	500
	Medium	33.75	3.2	10	2.41	415	2.43	412	39.5	46
	Hea	33.75	4	8	2.93	341	2.95	339
32	Light	42.2	2.6	12	2.54	394	2.57	389
	Medium	42.45	3.2	10	3.1	323	3.13	319	49	51
	Heavy	42.45	4	8	3.79	264	3.82	262
40	Light	48.1	2.9	11	3.23	310	3.27	306
	Medium	48.35	3.2	10	3.56	281	3.6	278	56	51
	Hea	48.35	4	8	4.37	229	4.41	227
50	Light	59.9	2.9	11	4.08	245	4.15	241
	Medium	60.25	3.6	9	5.03	199	5.1	196	68	60
	Hea	60.25	4.5	7	6.19	162	6.26	160
65	Light	75.6	3.2	10	5.71	175	5.83	172
	Medium	75.95	3.6	9	6.42	156	6.54	153	84	69
	H ea	75.95	4.5	7	7.93	126	8.05	124
80	Light	88.3	3.2	10	6.72	149	6.89	145
	Medium	88.75	4	8	8.36	120	8.53	117	98	75
	Heav	88.75	4.8	6	9.9	101	10.1	99
100	Light	113.45	3.6	9	9.75	103	10	100
	Medium	114.05	4.5	7	12.2	82	12.5	80	124	87
	Hea	114.05	5.4	5	14.5	69	14.8	68
125	Medium	139.65	4.8	6	15.9	63	16.4	61	151	96
	Heav	139.65	5.4	5	17.9	56	18.4	54
150	Medium	165.2	4.8	6	18.9	53	19.5	51	178	96
	Heav	165.2	5.4	5	21.3	47	21.9	46
150	Heavy	168.3	6.3		25.2	40
200	Medium	219.1	5.4		29.5	34
	Heavy	219.1	5.9		31	33
250	Heav	273	5.9		38.9	26
300	Heavy	323.9	6.3		49.3	20

Steel Pipes for Water, Gas and Sewerage Purposes

Conforming to IS : 3589/EN-10224
(Grade ERW 330 and 410)

N.B Size MM	Outside Diameter MM	Wall Thickness MM	Weight (Plain End)
			Kg/m	Mtr/MT
150	168.3	3.2	13	77
		4.5	18.2	55
		6.3	25.2	40
		7.1	28.2	35
200	219.1	3.6	19.1	52
		4.5	23.8	42
		5.2	27.4	36
		6.3	33.1	30
		7.1	37.1	27
		8	41.6	24
		8.4	43.6	23
250	273	3.6	23.9	42
		4	26.5	38
		4.3	28.5	35
		5	33	30
		5.6	36.9	27
		6.3	41.4	24
		7.1	46.6	21
		8	52.3	19
		8.4	54.8	18
		9.5	61 • 7	16
300	323.9	5	39.3	25
		5.6	44	23
		6.4	50.1	20
		7.1	55.5	18
		8.4	65.4	15
		9.5	73.7	14

Steel Tubes for Water Wells

(Casing Pipes)
Conforming to IS : 4270
(Grade FE 410)

Size N.B. mm	Outside Diameter mm	Wall Thickness mm	Weight (Plain End)
			Kg/m	Mt/MT
IOO	1 14.3	5.4	14.5	69
125	141 .3	5.4	1 8.1	55
125	141 .3	7.1	23.5	43
150	168.3	5.4	21 .6	46
150	168.3	7. 1	28.2	35
175	193.7	6.4	29.6	34
175	193.7	8	36.6	27
200	219.1	6.4	33.6	30
200	219.1	8	41 .6	24
225	244.5	7.1	41 .6	24
225	244.5	9	52.3	19
250	273.1	8	52.3	19
250	273.1	10	64.9	15
300	323.9	8	62.3	16
300	323.9	10	77.4	13